From: David Hildenbrand <david@redhat.com> To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devel@linuxdriverproject.org, linux-fsdevel@vger.kernel.org, linux-pm@vger.kernel.org, xen-devel@lists.xenproject.org, kexec-ml <kexec@lists.infradead.org>, pv-drivers@vmware.com, David Hildenbrand <david@redhat.com>, "K. Y. Srinivasan" <kys@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>, Stephen Hemminger <sthemmin@microsoft.com>, Kairui Song <kasong@redhat.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Matthew Wilcox <willy@infradead.org>, Michal Hocko <mhocko@suse.com>, "Michael S. Tsirkin" <mst@redhat.com> Subject: [PATCH v2 5/8] hv_balloon: mark inflated pages PG_offline Date: Thu, 22 Nov 2018 11:06:24 +0100 [thread overview] Message-ID: <20181122100627.5189-6-david@redhat.com> (raw) In-Reply-To: <20181122100627.5189-1-david@redhat.com> Mark inflated and never onlined pages PG_offline, to tell the world that the content is stale and should not be dumped. Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Kairui Song <kasong@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Acked-by: Pankaj gupta <pagupta@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> --- drivers/hv/hv_balloon.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 211f3fe3a038..47719862e57f 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -681,8 +681,13 @@ static struct notifier_block hv_memory_nb = { /* Check if the particular page is backed and can be onlined and online it. */ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg) { - if (!has_pfn_is_backed(has, page_to_pfn(pg))) + if (!has_pfn_is_backed(has, page_to_pfn(pg))) { + if (!PageOffline(pg)) + __SetPageOffline(pg); return; + } + if (PageOffline(pg)) + __ClearPageOffline(pg); /* This frame is currently backed; online the page. */ __online_page_set_limits(pg); @@ -1201,6 +1206,7 @@ static void free_balloon_pages(struct hv_dynmem_device *dm, for (i = 0; i < num_pages; i++) { pg = pfn_to_page(i + start_frame); + __ClearPageOffline(pg); __free_page(pg); dm->num_pages_ballooned--; } @@ -1213,7 +1219,7 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, struct dm_balloon_response *bl_resp, int alloc_unit) { - unsigned int i = 0; + unsigned int i, j; struct page *pg; if (num_pages < alloc_unit) @@ -1245,6 +1251,10 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, if (alloc_unit != 1) split_page(pg, get_order(alloc_unit << PAGE_SHIFT)); + /* mark all pages offline */ + for (j = 0; j < (1 << get_order(alloc_unit << PAGE_SHIFT)); j++) + __SetPageOffline(pg + j); + bl_resp->range_count++; bl_resp->range_array[i].finfo.start_page = page_to_pfn(pg); -- 2.17.2
WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com> To: linux-mm@kvack.org Cc: Michal Hocko <mhocko@suse.com>, Stephen Hemminger <sthemmin@microsoft.com>, Kairui Song <kasong@redhat.com>, linux-pm@vger.kernel.org, pv-drivers@vmware.com, Haiyang Zhang <haiyangz@microsoft.com>, linux-doc@vger.kernel.org, kexec-ml <kexec@lists.infradead.org>, linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, "Michael S. Tsirkin" <mst@redhat.com>, Matthew Wilcox <willy@infradead.org>, xen-devel@lists.xenproject.org, linux-fsdevel@vger.kernel.org, devel@linuxdriverproject.org, David Hildenbrand <david@redhat.com>, "K. Y. Srinivasan" <kys@microsoft.com>, Vitaly Kuznetsov <vkuznets@redhat.com> Subject: [PATCH v2 5/8] hv_balloon: mark inflated pages PG_offline Date: Thu, 22 Nov 2018 11:06:24 +0100 [thread overview] Message-ID: <20181122100627.5189-6-david@redhat.com> (raw) In-Reply-To: <20181122100627.5189-1-david@redhat.com> Mark inflated and never onlined pages PG_offline, to tell the world that the content is stale and should not be dumped. Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Kairui Song <kasong@redhat.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Acked-by: Pankaj gupta <pagupta@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> --- drivers/hv/hv_balloon.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 211f3fe3a038..47719862e57f 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -681,8 +681,13 @@ static struct notifier_block hv_memory_nb = { /* Check if the particular page is backed and can be onlined and online it. */ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg) { - if (!has_pfn_is_backed(has, page_to_pfn(pg))) + if (!has_pfn_is_backed(has, page_to_pfn(pg))) { + if (!PageOffline(pg)) + __SetPageOffline(pg); return; + } + if (PageOffline(pg)) + __ClearPageOffline(pg); /* This frame is currently backed; online the page. */ __online_page_set_limits(pg); @@ -1201,6 +1206,7 @@ static void free_balloon_pages(struct hv_dynmem_device *dm, for (i = 0; i < num_pages; i++) { pg = pfn_to_page(i + start_frame); + __ClearPageOffline(pg); __free_page(pg); dm->num_pages_ballooned--; } @@ -1213,7 +1219,7 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, struct dm_balloon_response *bl_resp, int alloc_unit) { - unsigned int i = 0; + unsigned int i, j; struct page *pg; if (num_pages < alloc_unit) @@ -1245,6 +1251,10 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, if (alloc_unit != 1) split_page(pg, get_order(alloc_unit << PAGE_SHIFT)); + /* mark all pages offline */ + for (j = 0; j < (1 << get_order(alloc_unit << PAGE_SHIFT)); j++) + __SetPageOffline(pg + j); + bl_resp->range_count++; bl_resp->range_array[i].finfo.start_page = page_to_pfn(pg); -- 2.17.2 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2018-11-22 10:07 UTC|newest] Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-11-22 10:06 [PATCH v2 0/8] mm/kdump: allow to exclude pages that are logically offline David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 1/8] mm: balloon: update comment about isolation/migration/compaction David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 2/8] mm: convert PG_balloon to PG_offline David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 3/8] kexec: export PG_offline to VMCOREINFO David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2019-03-11 9:04 ` Dave Young 2019-03-11 9:04 ` Dave Young 2019-03-11 9:04 ` Dave Young 2019-03-11 9:55 ` David Hildenbrand 2019-03-11 9:55 ` David Hildenbrand 2019-03-11 9:55 ` David Hildenbrand 2019-03-11 10:04 ` Dave Young 2019-03-11 10:04 ` Dave Young 2019-03-11 10:04 ` Dave Young 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 4/8] xen/balloon: mark inflated pages PG_offline David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-23 13:41 ` Juergen Gross 2018-11-23 13:41 ` Juergen Gross 2018-11-23 13:41 ` Juergen Gross 2018-11-23 13:41 ` Juergen Gross 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand [this message] 2018-11-22 10:06 ` [PATCH v2 5/8] hv_balloon: " David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 6/8] vmw_balloon: " David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 7/8] PM / Hibernate: use pfn_to_online_page() David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` [PATCH v2 8/8] PM / Hibernate: exclude all PageOffline() pages David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:06 ` David Hildenbrand 2018-11-22 10:09 ` [PATCH v2] makedumpfile: exclude pages that are logically offline David Hildenbrand 2018-11-22 10:09 ` David Hildenbrand 2018-11-22 10:09 ` David Hildenbrand 2018-11-27 16:32 ` Kazuhito Hagio 2018-11-27 16:32 ` Kazuhito Hagio 2018-11-27 16:32 ` Kazuhito Hagio 2019-03-07 8:41 ` David Hildenbrand 2019-03-07 8:41 ` David Hildenbrand 2019-03-07 8:41 ` David Hildenbrand 2019-03-11 16:40 ` Kazuhito Hagio 2019-03-11 16:40 ` Kazuhito Hagio 2019-03-11 16:40 ` Kazuhito Hagio 2018-11-27 16:32 ` Kazuhito Hagio 2019-02-27 5:32 ` [PATCH v2 0/8] mm/kdump: allow to " Dave Young 2019-02-27 5:32 ` Dave Young 2019-02-27 5:32 ` Dave Young 2019-02-28 19:45 ` Andrew Morton 2019-02-28 19:45 ` Andrew Morton 2019-02-28 19:45 ` Andrew Morton 2019-02-28 19:45 ` Andrew Morton 2019-02-28 19:54 ` Boris Ostrovsky 2019-02-28 19:54 ` Boris Ostrovsky 2019-02-28 19:54 ` Boris Ostrovsky 2019-02-28 19:54 ` Boris Ostrovsky 2019-03-04 6:21 ` Dave Young 2019-03-04 6:21 ` Dave Young 2019-03-04 6:21 ` Dave Young 2019-03-04 6:21 ` Dave Young 2019-03-04 7:14 ` Juergen Gross [not found] ` <20190304062118.GA31037-0VdLhd/A9Pl+NNSt+8eSiB/sF2h8X+2i0E9HWUfgJXw@public.gmane.org> 2019-03-04 7:14 ` Juergen Gross 2019-03-04 7:14 ` Juergen Gross 2019-03-04 7:14 ` Juergen Gross 2019-02-27 5:32 ` Dave Young
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